Improvement in cooking-ranges



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w. STEFFEJ Cooking Range.

Patented Feb. 9, 1869.

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W. STEFFE.

Cooking Range.

No. 86,785. Patented Feb. 9, 1869.

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v 517/6EW N.FETERS. PHOTO-LITNOGRAPHER. WASHINGTON D C fiance gatj m WILLIAM S'IEFFE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HIMSELF AND JESSE REYNOLDS, OF SAME PLACE.

Letters Patent No. 86,785, dated February 9, 1869. a

IMPROVEMENT IN COOKING-RAN To all 'whom it may concern:

Be it known that I, WILLIAM STEFFE, of the city of Philadelphia, in the State of Pennsylvania, have invented acertain new and useful Improvement on Ranges for Cooking and Heating-Purposes; and I do hereby declare that the following is a full, clear, and

exact description of the construction and operation of the same, reference being had to the accompanying drawings, and to the letters and marks thereon, which said drawings form part of this specification, and show a range constructed under my invention- Figure 1 being a top view of the range;

Figure 2, a view of the interior, when the top plate is removed;

Figure 3, a longitudinal sectional view, on the line a of fig. 2, the top plate being in place;

Figure 4, a view by transverse section, on the line b of fig. 2;

Figure 5, a transverse sectional view, on the line 0 of fig. 2 V

Figure 6, a view of the upper surface of the bottom plate, the other'parts of the range above it being removed;

Figure 7, a view by transverse section, on the line d of fig. 2; and

Figure 8, a front View of the range.

In all of these figures, where like parts are shown, like marks and letters are used to indicate the parts.

My invention relates to that class of ranges known 'as flat-top ranges,,fo1 cooking and heating-purposes.

Such ranges, as now set up for use, are surrounded by and supported upon brick-work, occupying considerable space inthe kitchen, and causing the loss of considerable heat. This range is so constructed that it may be put in. theproper position for use without any brick-work, except such, if any, as may be required to elevate it from the floor or hearth.

I SlllI'OllHd the range proper-thefront ends or sides, back, and hottom-with tin, or other suitable like material, the space between this tin exterior and the range being used as air-fines.

The drawings, forming part of this specification, show this tin casing around the back, bottom, and ends, the front being omitted in order the better to exhibit the doors and openings to the fire-pot and ovens.

When the front is also encased, suitable air-fines will be between the casing and the front plates, and

be in proper connection with the other fines for heating the air between the casing and the back, ends, and bottom of the range.

This tin casing f is, in most of the figures, indicated byblue coloring.

Between the tin and the plates of the range are properly secured, at certain points, check-plates, which give direction to the air, so hat it has an upward and downward, or tortuous course. In general, these plates are marked 9, and their position further indicated by the arrows in blue color, which designate the track of the heated air.

Between the tin and the bottom plate, are like deflecting-plates, g, for giving direction to the air, there being suitable openings, h, in the tin. In connection with these, there can be pipes, or tubes, for conveying in the air from the exterior of the building.

The lines for conducting the products of combustion and heat from the firepot, around the ovens, c, the doors of which are marked j, and forward and upward, and under the top plate, to the smoke-pipe, arev generally indicated by the arrows in red, which designate the track of the products of combustion.

Usually, the grate of ranges is seated on a bearingbar, or rest, inside of the firepot, the back of the grate necessarily offering, by its construction, resistance to the draught, and allowing the coals to lodge in it, and remain unconsumed.

The grate, 7a,,of this range, has a rest, like a socket, in a recess, 1, formed in the back-lining, tile, or waterback, m, into which the bar n fits.

At each corner there is a projection, o, for sustaining the grate in the recess. The collecting of unconsumed coals and ashes, and the interruption of the passage of the air and of combustion, are therefore thus avoided.

The flues formed by the plates of the range and by the deflecting and directing-plates of the casing, for

conducting .the heat and products of combustion from the fire-pot to the smoke-pipes, on the one hand, and from the atmosphere to the heat-flue on the other hand,

can readily be seen by the following track, marked out,

respectively, by the red and by the blue arrows.

The heat and products of combustion from the firepot 1) will fill the space between the top plate q and plates-r and s, the track being indicated by arrow 1, fig. 4, and pass down, and by the side of the oven, through the flue t, arrow 2, fig. 3, under the oven, in flue u, arrow 3, fig. 3, be deflected up in flue v, arrow 4, by the inner side plate of the oven, and down, arrow 5, and out of fine i), arrow 6, into the ascendingflne w and smoke-pipe x. Thus the heat will be conveyed to all parts of the top plate of the range, and to all the plates of the ovens, and to all the plates in contact with the air-fines, that it is possible to have exposed to the products of combustion. a

It must be noticed that the track of the heat, here recited, applies to the fines and ovens on both sides The atmospheric air, entering through the. holes h,

arrow 7 and being deflected backward and forward by" ,clearly indicated by the blue lines and arrows, in the different figures of the drawings, a special recital of the track of the air is not needed to a full understanding of the invention, and is therefore, to avoid prolix ity, omitted.

I am aware that stoves and ranges have been encased in iron plates and in brick-work, and that deflecting and directing-plates and dampers in the air heating spaces, and passages forthe products of combustion, are of common use, and I therefore limit my claims to the use of such plates and encasing as are specially herein set forth, and referred to in the following claims.

What I claim as my invention, and desire to secure by Letters Patent, is-- mitted to be heated, tatraverse and impinge upon the entire hot or heated surfaces of such parts of the range: and fire-pot, before being conveyed to its point of dise tributiou, as herein shown and described.

' 3. The arrangement and combination of the space, formed by the casing of a fiat-top range, with the'hotair space around the fire-pot, and their several checks,- or-divi'sion-plates, and the space, or chamber, back of the fire-pot, and the several openings for the admission of cold external air, and the arrangement of the closed pipes, or fiues, for canjving off the products of combustion, after they have passed around the ovens,

all as described, whereby the external cold air, which admitted to be heated, has the entire available hot surface of the range to traverse, and come in contact. with, before its distribution into the apartments to be warmed. This arrangement and combination, as described, for heating and warming-purposes only.

This specification signed, this 30th day of September, 1868.

WILLIAM STEFFE. Witnesses:

Annw J. Boswnnn, FREDERICK ARNET. 

